ABSTRACT
INTRODUCTION David Markham awakens each weekday morning at 7:00 a.m. He washes, dresses, prepares and eats breakfast. At 8:00 a.m. his ride comes, and he leaves for work. Mr. Markham works for a company that prepares snackfood trays for vending machines, He sorts the items and places them in their designated bins in the trays.
